Cat 3516 Seattle Low

  • Specs Summary
  • Power Range
    469-1001 bhp (350-747 bkW)
  • Speed Range
    1800-2300 rpm
  • Emissions
    EPA Tier 3 Commercial, IMO II, EU IW
  • Aspiration
    TA, TTA

Cat C18 ACERT Propulsion Engine (Tier 3)

The C18 ACERT marine propulsion engine has commercial application ratings of 475-725 mhp (469-715 bhp) at 1800-2100 rpm that meet U.S. EPA Tier 3, IMO II, and EU IW emissions regulations. In addition to meeting the stricter EPA Tier 3 emissions, this engine now offers a fresh water aftercooled option for the commercial propulsion and auxiliary engines and genset packages. From fishing to offshore and everything in between, you can be confident that we have the solution to fit your needs.

Power Rating

  • Power Range 469-1001 bhp (350-747 bkW)

Engine Specifications

  • Speed Range 1800-2300 rpm
  • Emissions EPA Tier 3 Commercial, IMO II, EU IW
  • Aspiration TA, TTA
  • Bore 5.7 in (145 mm)
  • Stroke 7.2 in (183 mm)
  • Displacement 1106 in3 (18.1 L)
  • Rotation (from flywheel end) Counterclockwise
  • Configuration In-line 6, 4-Stroke-Cycle Diesel

Dimensions & Weights

  • Minimum Dry Weight 4000 lb (1814 kg)
  • Minimum Length 73 in (1854 mm)
  • Maximum Length 76 in (19312 mm)
  • Minimum Height 47.2 in (1198 mm)
  • Maximum Height 51.2 in (1300 mm)
  • Minimum Width 44.6 in (1134 mm)
  • Maximum Width 47.4 in (1204 mm)

Standard Equipment

AIR INLET SYSTEM

  • Separate circuit after-cooled (SCAC)
  • Open Crankcase Ventilation (OCV) system
  • Turbocharger, jacket water cooled
  • Turbocharger inlet, 152 mm (6 in) OD straight connection

COOLING SYSTEM

  • Separate Circuit After-Cooling (SCAC) for both HEX and Keel cooled engines
  • Engine JW and SCAC Shell & Tube Heat Exchangers for HEX cooled engines
  • SCAC pump, gear driven, for HEX cooled engines only
  • Jacket water pump, gear driven
  • Sea water pump, bronze impeller, gear driven
  • SCAC and JW shunt tanks for maintaining proper pump inlet pressures

EXHAUST SYSTEM

  • Water-cooled exhaust manifold & turbocharger
  • 152 mm (6 in) round flanged outlet

FLYWHEELS & FLYWHEEL HOUSINGS

  • Flywheel Housing, SAE No. 0
  • Flywheel, 18 inch, 136 teeth
  • SAE standard rotation
  • SAE No. 1, Flywheel: 14 inch, 113 teeth

FUEL SYSTEM

  • Front service simplex fuel system
  • Fuel transfer pump, gear driven
  • Manual fuel priming pump
  • Hybrid fuel line design

LUBE SYSTEM

  • Front service simplex oil system
  • Center sump oil pan:
  • Front and top service oil filler locations
  • Front service dipstick
  • Oil pump, gear driven

MOUNTING SYSTEM

  • Front support - adjustable

POWER TAKE-OFFS

  • Poly-V groove for alternator drive
  • NOTE: There are no standard power take-offs available

GENERAL

  • Front damper guard
  • Front service engine
  • Common electrical bonding point
  • Engine does not ship with zinc components
  • Engine is certified to D2/E2 emissions cycles
  • CERTIFIED TO EU STAGE IIIA AND CCNR STAGE II (E3 CYCLE) EMISSIONS STANDARDS.

CONTROL SYSTEM

  • Programmable low idle
  • WOSR (Wide Operating Speed Range) available for EPA Tier 3 - B and C Ratings
  • Adjustable High Idle (TEL) - EPA Tier 3 WOSR Ratings Only
  • Electronic diagnostics and fault logging
  • Engine and transmission monitoring (speed, temperature, pressure)
  • Electronic fuel/air ratio contro
  • Engine Protection Mode for extended ambient conditions - EPA Tier 3 Ratings Only
  • Torque Limiting functionality for WOSR ratings only
  • 70-pin customer connector
  • Three types of throttle inputs (primary/ secondary PWM, 0-5V, 4-20mA +/-

Optional Equipment

EXHAUST SYSTEM

  • Dry Elbows
  • Water-Cooled Elbows
  • Flexible Fitting
  • Flange
  • Muffler
  • Muffler Spark Arresting

AIR INLET SYSTEM

  • Air Inlet Adapter

CHARGING SYSTEM

  • Battery Chargers
  • Charging Alternators
  • Alternator Mounting Group
  • Ammeter

CONTROL SYSTEM

  • MECP I
  • CATERPILLAR ALARM AND PROTECTION

COOLING SYSTEM

  • AUX EXPANSION TANK FLANGE KIT

FUEL SYSTEM

  • Duplex Fuel Filters
  • Flexible Fuel Lines
  • Fuel Cooler
  • Primary Fuel Filters

INSTRUMENTATION

  • Instrument Panels
  • OEM Wiring Harness
  • Engine to Engine Harness
  • Gauges
  • Transmission Sensors
  • Oil Level Sensor

LUBE SYSTEM

  • Duplex Oil Filters
  • Transmission Oil Cooler
  • Sump Pump

MOUNTING SYSTEM

  • Vibration Isolators
  • Front Support
  • Rear Support

POWER TAKE-OFFS

  • NOTE: PTO OPTIONS REQUIRE TORSIONAL VIBRATION ANALYSIS
  • Crankshaft Pulleys
  • Front Stub Shaft
  • Hydraulic Pump Drive Adapter
  • Front Enclosed Clutch

PROTECTION SYSTEM

  • Marine Classification Society and SOLAS
  • Marine Classification Society and Fire Resistance

STARTING SYSTEM

  • STARTING SYSTEM Electric Starting Motors - Single 24 Volt
  • Air Starting Motor
  • Air Start Accessories
  • Starting Aids - JW Heaters
  • Battery Sets - 24 Volt - Dry

LITERATURE

DECALS

PACKING

  • Engine Protective Cover
  • Storage Preservation
  • Export Packing